There are 1000's of rules for managing projects. I've collected many over the past 3 decades of managing projects. I came across a web site that has important things to say about project and program management.
Altis is the site of Jerry Maden, Associate Flight Director, Goddard Space Flight Center. Jerry has his 100 Rules for NASA Project Mangers.
But there is a critical important rule his states regarding PM 2.0 type processes. I'll paraphrase
Spitzer's Advice for Business Leaders: Never write when you can talk. Never talk when you can nod. And never put anything in an e-mail.
This is expandable every aspect of managing a project.
